xref: /src/sys/arch/evbmips/adm5120/mainbus.c

/* $NetBSD: mainbus.c,v 1.5 2021/08/07 16:18:50 thorpej Exp $ */

/*-
 * Copyright (c) 2007 Ruslan Ermilov and Vsevolod Lobko.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or
 * without modification, are permitted provided that the following
 * conditions are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above
 *    copyright notice, this list of conditions and the following
 *    disclaimer in the documentation and/or other materials provided
 *    with the distribution.
 * 3. The names of the authors may not be used to endorse or promote
 *    products derived from this software without specific prior
 *    written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
 * OF SUCH DAMAGE.
 */
/*
 * Copyright 2002 Wasabi Systems, Inc.
 * All rights reserved.
 *
 * Written by Simon Burge for Wasabi Systems, Inc.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed for the NetBSD Project by
 *      Wasabi Systems, Inc.
 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
 *    or promote products derived from this software without specific prior
 *    written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: mainbus.c,v 1.5 2021/08/07 16:18:50 thorpej Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>

#include <sys/bus.h>

#include <mips/cache.h>
#include <mips/cpuregs.h>

#include <mips/adm5120/include/adm5120reg.h>
#include <mips/adm5120/include/adm5120var.h>
#include <mips/adm5120/include/adm5120_mainbusvar.h>

#include "locators.h"

static int	mainbus_match(device_t, cfdata_t, void *);
static void	mainbus_attach(device_t, device_t, void *);
static int	mainbus_print(void *, const char *);

CFATTACH_DECL_NEW(mainbus, sizeof(struct mainbus_softc),
    mainbus_match, mainbus_attach, NULL, NULL);

/* There can be only one. */
int	mainbus_found;

struct mainbusdev {
	const char *md_name;
};

const struct mainbusdev mainbusdevs[] = {
	{"cpu"		},
	{"obio"		},
	{"extio"	},
	{"admpci"	},
	{NULL		}
};

static void
mainbus_gpio_attach(struct mainbus_softc *sc)
{
	if (bus_space_map(sc->sc_obiot, ADM5120_BASE_SWITCH, 512, 0,
	                  &sc->sc_gpioh) != 0){
		aprint_error_dev(sc->sc_dev, "unable to map switch\n");
		return;
	}
#if 0
	aprint_normal_dev(sc->sc_dev, "memcont 0x%08" PRIx32 "\n",
	    bus_space_read_4(sc->sc_obiot, sc->sc_gpioh, 0x1c));
#endif
	sc->sc_gpio = admgpio_attach(sc);
}


static int
mainbus_match(device_t parent, cfdata_t match, void *aux)
{
	return !mainbus_found;
}

static void
mainbus_attach(device_t parent, device_t self, void *aux)
{
	struct mainbus_softc *sc = device_private(self);
	struct mainbus_attach_args ma;
	const struct mainbusdev *md;
	struct adm5120_config *admc = &adm5120_configuration;

	mainbus_found = 1;
	aprint_normal("\n");

	sc->sc_dev = self;
	sc->sc_obiot = &admc->obio_space;

	mainbus_gpio_attach(sc);

	ma.ma_dmat = &admc->obio_dmat;
	ma.ma_obiot = sc->sc_obiot;
	ma.ma_gpioh = sc->sc_gpioh;
	ma.ma_gpio = sc->sc_gpio;
	ma.ma_gpio_offset = -1;
	ma.ma_gpio_mask = 0x0;

	for (md = mainbusdevs; md->md_name != NULL; md++) {
		ma.ma_name = md->md_name;
		config_found(self, &ma, mainbus_print,
		    CFARGS(.iattr = "mainbus"));
	}
}

static int
mainbus_print(void *aux, const char *pnp)
{
	struct mainbus_attach_args *ma = aux;

	if (pnp != NULL)
		aprint_normal("%s at %s", ma->ma_name, pnp);

	return UNCONF;
}